For the record

"Child safety expert says TV cartoons should be given violence ratings" (8 November) was wrong to say that Dr Karen Pfeffer of the University of Lincoln had recommended that violence portrayed in children's TV programmes "should be more realistic". It was also incorrect to state that Dr Pfeffer proposed that children's programmes be given cinema-style ratings that would "encourage parents to choose programmes where characters sustain realistic injuries". Dr Pfeffer's research was into risky behaviour portrayed on TV and was not about violence. Her ratings proposal was designed to give parents information about the risky content of the programmes and enable them to make decisions about their children's viewing. We apologise for these misinterpretations.

We described "a point on the Ataturk bridge (in Istanbul) where you can have one foot in Europe, the other in Asia...", but the bridge spans the Golden Horn, not the Bosphorus. And we took 1,000 years off Aya Sofya, the Church of the Divine Wisdom, which was built in the 6th, not 16th, century. "A whirlwind for the senses" (Escape).

Our profile of Steve Jobs (7 Days) reported that he is said to have described taking LSD as "one of the two or three most important things" he had ever done, attributing the quote to a biography of him on Apple's website, but it was taken from John Markoff's book, What the Dormouse Said: How the 60s Counterculture Shaped the Personal Computer Industry.